A plaque commemorates William Ah Ket (1876–1936), lawyer and campaigner for Chinese rights who was born in Wangaratta.

He established a committee to oppose the proposed Immigration Restriction Act and he was also active in the Anti-Opium League of Victoria which attempted to bring about social reform among Chinese in Australia and abroad. A Paper on the Chinese and the Factories Acts, published in 1906, defended the rights of Chinese workers and factory owners against unfair legislation.

The Melbourne Chinese Chamber of Commerce asked him to represent Australian Chinese at the opening of the first Chinese Parliament in Beijing in December, 1912 and he was Acting Consul for China in 1913–1914 and 1917.

William was survived by his wife Gertrude Victoria (nee Bullock) and four children Dr.William, Stanley, Melaan and Toylaan. Toylaan Margaret Allen, his last surviving child, passed away in New South Wales on 16th July 2015.